Functionalized Carbon Nanotubes: Synthesis of Meltable and Amphiphilic Derivatives

Melt down! A meltable, amphiphilic carbon nanotube derivative was obtained in a two-step functionalization process whereby oxidation of the nanotube was followed by a surface reaction with a polyethylene glycol-substituted tertiary amine. The derivative underwent a reversible solid-to-liquid transition at 35 °C (see image) and was highly dispersible in both aqueous and organic media.